Energy consumption index on-line monitoring and consumption difference analysis method for F-grade gas-steam combined cycle generator set

Abstract

The invention relates to an energy consumption index on-line monitoring and consumption difference analysis method for an F-grade gas-steam combined cycle generator set. The energy consumption index on-line monitoring and consumption difference analysis method comprises the following steps: (1) establishing an energy consumption index system; (2) according to an energy consumption index system ofthe gas-steam combined cycle generator set, stripping out energy consumption indexes needing to be subjected to consumption difference analysis, and establishing an energy consumption difference analysis index system; (3) establishing a consumption difference analysis and calculation model of the gas generator set; and (4) building an energy consumption index on-line monitoring and consumption difference analysis system of the gas-steam combined cycle generator set. On the basis of an established gas turbine consumption difference analysis system of an F-grade gas-steam combined cycle generator set under a full-load working condition, field operation data is collected by using a gas turbine, a waste heat boiler, a steam turbine and a measuring device for measuring the energy consumption index of an auxiliary machine of the steam turbine, and the comprehensive index of the gas-steam combined cycle generator set and the consumption difference of related operation indexes are calculated in real time by using a built on-line calculation and diagnosis analysis system.

Description

technical field [0001] The invention relates to an on-line monitoring method for energy consumption index and consumption difference analysis method of an F-class gas-steam combined cycle generator set, and belongs to the technical field of gas-steam combined cycle power generation. Background technique [0002] At present, the installed capacity of domestic gas-steam combined cycle generators is gradually increasing, and the economic level of its operation has a profound impact on the implementation of my country's energy-saving and emission-reduction policies. The operating characteristics of the combined cycle generator set ensure the safe and stable operation of the gas generator set, such as the Chinese patent application number 201710610575.9. However, in terms of unit energy efficiency monitoring and diagnosis, there is still a certain gap with traditional coal-fired generating units. At present, gas-steam combined cycle power generation enterprises mainly carry out s...

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Problems solved by technology

However, in terms of unit energy efficiency monitoring and diagnosis, there is still a certain gap with traditional coal-fired power generation units

At present, gas-steam combined cycle power generation enterprises mainly carry out simple year-on-year and month-on-year statistics on some comprehensive indicators. The deeper energy consumption diagnosis analysis has not been fully carried out, and it is impossible to track the factors that affect the economical efficiency of the unit and the degree of influence, and it is difficult to guide the operation. Personnel optimize and adjust the operation of the unit

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